Electric foot warmer



Feb. 12, 1929. 1,701,973

E. GEHRS ELECTRIC FOOT WARNER Filed March 24, 1927 EI HL EKEr/as l m/eulfn' E f .latented Feb. 12,

UNITED STATES PATENT OFFICE.

EMIL GEHRS, OF PASADENA, CALIFORNIA.

ELECTRIC FOOT WARMER.

My invention pertains to electric foot warmers and has for its objects, among others, to provide an electric heater adapted to be placed in the shoes of an automobile or trolley-car driver, that is compact, light in weight, cheap to manufacture, which is conveniently attached to an ordinary belt worn by the driver, that may be instantly detached from its source of electrical energy to allow the driver to walk about without inconvenience and instantly returned to service.

I attain these objects by the provision and assembly of the members and parts as hereinafter forth, the same being fully and clearly illustrated in the accon'ipanying drawings, in which The figure a schematic view of the complete invention showing its method of attachment to the lighting system of an automobile.

Referring more particularly to the drawings:

1 indicates a pad made of suitable fabric adapted to be carried on a trousers belt, 2, and provided with the female parts of ball and socket snaps, 15, 6" and 12*. Between the coverings of pad 1 lie wires 1 L properly insulated and arranged and attached to snaps 15, (3" and 12 to allow a six volt or twelve volt source of electric energy as shown in the drawing and explained later.

2 indicates a trouser belt, adapted to pas. through a belt strap provided on the reverse side of pad 1, (not shown).

C indicates a smaller pad provided. with the male parts 3*?) of socket snaps adapted to co-act with parts 15 in snapping action. Electrically coni'iected with snaps 33 are lead-in wires, 16, from battery 6 or other source of electric energy, and broken to provide socket and plug 1.

(1, indicates an automobile dash and hood.

7-7 indicate small pads provided with the male pa of snaps fixed thereon and adapted to co-act with female parts 6" and 12* in snapping action.

9 indicates a. pair of shoe insoles heels of which are attached flaps 10.

Between the layers of inner soles 9 and flaps 19 are sewed multiple loops of resistance wire, 12-12, the same terminating in halves of ball and socket snaps 11-11, the corresponding halves of said snaps, 88,

to the being the termini of connecting wires 17, as shown.

18 indicates a generator adapted to supply electric energy and in circuit therewith is interposed a step-down transformer, 19, whereby the electric current voltage of generator 18 is reduced to 6 volts or 12 volts.

It will be understood that wires 1616 and 17 may be in cable form and flexible as convenience may dictate, although shown in the drawings as separate wires.

In practical use, pad 1 is slipped onto the trouser belt 2, cables 17 passed severally through the trouser legs and termini 88 snap wd into 11-11 of flaps 1(), the latter projecting above the tops of shoes in which inner soles 9 have been inserted. Snaps 77 are then attached to their corresponding halves, 66" or 12"12 as indicated by the arrows, depending on the voltage of battery 6 or other current supply. Pad C is then placed over pad 1 and snaps 33 forced into their corresponding halves, 15.

It will. be noted that the device is now ready for service with the exception of placing plugt in socket 5. Until that is done plug 4 may be carried in a convenient pocket and the driver be at full liberty to move about at will. Insertion of plug 4 into socket 5 will place the device in service again, and warmth in inner soles 9 will be apparent at once.

It will be further noted that placement of snaps 7-7 in sockets (3 -6 serves to introduce each of inner soles 9 in parallel with the terminals of battery 6, and that place ment of the same in sockets 12"-12 serves to bring resistance elements 1212 in series with battery 6 when the latter is of twelve volt capacity, the resistance of each of said elements being based on a six volt generating source.

Having thus disclosed my invention and its mode of operation, I claim as new and seek Letters Patent of the United States upon- 1. An electrical foot-warmer of the character disclosed. comprising, in cou'ibination, asource of electrical current supply and outlet therefor; a. pair of electrical heating elements positioned in a pair of shoe inner soles; and detachable means in circuit therewith adapted to allow said heating elements to enter said current supply in series or members and one wire of each of said outgoing cables being electrically connected. with said two electrical contact members within said pad to allow said outgoing cables to enter said current supply in series or parallel; a pair of shoe inner soles, each thereof'pro'vided with a heel flap adapted to extend above the top of a shoe; aheating element positioned between the layers of each of said inner-soles and terminating at the free ends of said flaps in electrical contact members adapted to be removably connected with said outgoing cables, all substantially as set forth.

In testimony whereof I have hereunto set my name this 16th day of March, 1927.

EMIL GEHRS. 

